diff --git a/requirements.txt b/requirements.txt
index 27b723c..98f9695 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,45 +5,97 @@
 #    pip-compile requirements.in
 #
 -e .
-alabaster==0.7.12         # via sphinx
-atomicwrites==1.3.0       # via pytest
-attrs==19.1.0             # via jsonschema, packaging, pytest
-babel==2.7.0              # via sphinx
-certifi==2019.6.16        # via requests
-chardet==3.0.4            # via requests
-coverage==4.5.4           # via pytest-cov
-docutils==0.15.2          # via sphinx
-idna==2.8                 # via requests
-imagesize==1.1.0          # via sphinx
-importlib-metadata==0.20  # via pluggy, pytest
-jinja2==2.10.1            # via sphinx
+    # via -r requirements.in
+alabaster==0.7.12
+    # via sphinx
+atomicwrites==1.3.0
+    # via pytest
+attrs==19.1.0
+    # via
+    #   jsonschema
+    #   packaging
+    #   pytest
+babel==2.7.0
+    # via sphinx
+certifi==2019.6.16
+    # via requests
+chardet==3.0.4
+    # via requests
+coverage==4.5.4
+    # via pytest-cov
+docutils==0.15.2
+    # via sphinx
+idna==2.8
+    # via requests
+imagesize==1.1.0
+    # via sphinx
+importlib-metadata==0.20
+    # via pluggy
+jinja2==2.10.1
+    # via sphinx
 jsonschema==3.0.2
-markupsafe==1.1.1         # via jinja2
-more-itertools==7.2.0     # via pytest, zipp
-packaging==19.1           # via pytest, sphinx
-pluggy==0.12.0            # via pytest
-py==1.8.0                 # via pytest
-pygments==2.4.2           # via sphinx
-pyparsing==2.4.2          # via packaging
-pyrsistent==0.15.4        # via jsonschema
+    # via sanitized-package
+markupsafe==1.1.1
+    # via jinja2
+more-itertools==7.2.0
+    # via pytest
+packaging==19.1
+    # via
+    #   pytest
+    #   sphinx
+pluggy==0.12.0
+    # via pytest
+py==1.10.0
+    # via pytest
+pygments==2.4.2
+    # via sphinx
+pyparsing==2.4.2
+    # via packaging
+pyrsistent==0.15.4
+    # via jsonschema
 pytest-cov==2.7.1
-pytest==5.1.2             # via pytest-cov
-pytz==2019.2              # via babel
+    # via sanitized-package
+pytest==5.1.2
+    # via
+    #   pytest-cov
+    #   sanitized-package
+pytz==2019.2
+    # via babel
 pyyaml==5.1.2
-requests==2.22.0          # via sphinx
-six==1.12.0               # via jsonschema, packaging, pyrsistent
-snowballstemmer==1.9.0    # via sphinx
+    # via sanitized-package
+requests==2.22.0
+    # via sphinx
+six==1.12.0
+    # via
+    #   jsonschema
+    #   packaging
+    #   pyrsistent
+snowballstemmer==1.9.0
+    # via sphinx
 sphinx-rtd-theme==0.4.3
-sphinx==2.2.0             # via sphinx-rtd-theme
-sphinxcontrib-applehelp==1.0.1  # via sphinx
-sphinxcontrib-devhelp==1.0.1  # via sphinx
-sphinxcontrib-htmlhelp==1.0.2  # via sphinx
-sphinxcontrib-jsmath==1.0.1  # via sphinx
-sphinxcontrib-qthelp==1.0.2  # via sphinx
-sphinxcontrib-serializinghtml==1.1.3  # via sphinx
-urllib3==1.25.3           # via requests
-wcwidth==0.1.7            # via pytest
-zipp==0.6.0               # via importlib-metadata
+    # via sanitized-package
+sphinx==2.2.0
+    # via
+    #   sanitized-package
+    #   sphinx-rtd-theme
+sphinxcontrib-applehelp==1.0.1
+    # via sphinx
+sphinxcontrib-devhelp==1.0.1
+    # via sphinx
+sphinxcontrib-htmlhelp==1.0.2
+    # via sphinx
+sphinxcontrib-jsmath==1.0.1
+    # via sphinx
+sphinxcontrib-qthelp==1.0.2
+    # via sphinx
+sphinxcontrib-serializinghtml==1.1.3
+    # via sphinx
+urllib3==1.25.3
+    # via requests
+wcwidth==0.1.7
+    # via pytest
+zipp==0.6.0
+    # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
-# setuptools==41.2.0        # via jsonschema, sphinx
+# setuptools